From the Google adsense blog

It looks like Adsense is pushing hard to help users make more money (and in turn Google). This week they are going to be have a series of articles on the following

<quote>
Find out about the many webmaster tools that can help you inform the Google crawlers about your site.

Got an RSS feed for your site? You'll be surprised how far that will take you in driving quality traffic to your site.

Learn more about your users, from the pages they're visiting most to the amount of time they spend on your site.
</quote>

One more thing, according to the post, they are saving a surprise for the end of the week

<quote>
And finally, to end the week we have something extra special. I won't ruin the surprise here, but suffice it to say that it'll be worth the wait.
</quote>

Link:
http://adsense.blogspot.com/2006/08/optimization-month-week-4-building-and.html

Why "starts this week" ?
Because, as said in the title of the blog, its the 4th week of optimisation ;)

Adsense support series starts this week. Only on Google TV. Stay tuned!

TomHtml Ok, start might not have been the right word :D